How to Achieve Carrier-Grade VoIP Roll-Out with Record Time-to-Market

and Low Development Cost

Majid Foodeei PhD System Architect/ Technical Marketing

mfoodeei@centillium.comCentillium Communications, Inc.Centillium Communications, Inc.

M. Foodeei, Centillium Comm.

VoIP Reality in the Making

• Broadband access offering• Wireless (2G/3G) and WiX and NGN convergence• VoIP, “Triple/Quadruple Play” and other services• Commitments/roll-out by tier 1 & comp. providers

o BT, NTT, KDI, AT&T, SBC o ISPs, Skype

• Examples of milestones and service roll-out tractiono BT vendor select done, Initial live

trial/deploymento 30+ million Skype users

M. Foodeei, Centillium Comm.

Building the Right VoIP Gear: Requirements & Challenges

• MUST and SHOULD Requirements and Challenges:o Carrier-grade qualityo Scalable o Interoperableo Convergence ready (wireless IMS model & NGN

VoIP)o 99.999, fault-tolerant, advanced field/live

diagnostics and remote monitoringo Feature rich (codecs, network features)

M. Foodeei, Centillium Comm.

Building the Right VoIP Gear: Requirements & Challenges (cont.)

• VoIP or VoP for Converged Networkso Same HW & SW for VoIP/PSTN, wireless (2G/3G/…), NGN

VoPo Network interworking with and without transcodingo Many advanced network processing features: e.g. 3GPP

Iu/Nb, lawful interceptiono Voice enhancement features (acoustic EC, adap. level

control, noise suppression)

• Remains Top Decision Criteriao Time-to-marketo Cost (development, system and maintenance)

M. Foodeei, Centillium Comm.

Overview of VoIP Development Alternatives

• Voice Processor Building Block Alternativeso Using general-purpose DSP and NP + multiple SW o Using advanced SoC (DSP+NP+SW)

• Advantages of Advanced SoC o Accelerates hardware & software development o Lowers cost (development, system, and maintenance) o Better scalable application SW and HWo Better meets high-density and low power requirements

• How do chip-level variables play into development?

M. Foodeei, Centillium Comm.

Product Cycle Flow-Chart: From Vendor Selection to Operation Maintenance

Given Platform/ Chassis

& Board Form Factor

Feature set

Power Budget

Capacity Target

Board Space

------ HW Development ------1- DSP + NP 2- Aggregation3- Host (Control & Signaling)4- Other (Power, Redundancy, etc.)

---- SW Development ----1- DSP + NP SW2- Aggregation SW/Control3- Host SW

Integrated?3rd Party? Or

Internal?

---- System Testing & QA ---- HW/SW Component Integration

-- Field Support/ Maintenance --Component Fault & Testability

Scalability

Advanced SoC Advantage

-High capacity/Low power

-Low chip count (Integrated)

-Fast development (Months)

-Low cost

-Very fast development (Integrated SW)

-Common API across scales

-Shorter system testing (System tested SoC)

-Lower cost and easier support

M. Foodeei, Centillium Comm.

An Example of Advanced SoC: Inside Entropia-III

Centillium Entropia III

RAM

MIPSCPU

RAM

MIPSCPU

AAL1Accel

SDRAMI/F

DMA

Uto

pia

Host I/F

AD

PC

M

CAS/HDLC

GM

AC

PO

S

4x CPU

RA

M

AD

PC

M

RA

M

AAL5Accel

6x DSP

TS

I (8

192

x 13

60)

VCU

SigmaDSP

VCU

SigmaDSP

Jitt

er B

uffe

r

RAM

Packet Engines

Voice Engines

TD

M I

/F

FIF

O

MII/GMII

POS-PHY

Utopia2

TDMPorts

Dual-mode Host I/F(Motorola/PCI)

SDRAM SDRAM

EU

0E

U1

EU

2E

U3

XMEM YMEM

XMEM YMEM

64

Sigma DSP VCU

EU

9

EU

0

PMEM

128

PMEM

80

64

Output ALU64 64

Sigma+VCU (SigmaPlus) Core•14 MAC/cycle (25 GMAC/sec Entropia-III)• For the DSP intensive tasks about 10x performance advantage over the conventional single MAC DSPs (such as TI C54x core)•At system level translating to ~5x advantage

Built for voice processing (EC & Codec)

1 Gop/sec NP+ HW Acc.Integrated Advanced SoC and Integrated Advanced SoC and

3G-NGN System Software Suites3G-NGN System Software Suites

AD

PC

M H

/W

Other Blocks

3G-NGN System Software Suites3G-NGN System Software Suites (SoC integrated GW-on-chip)(SoC integrated GW-on-chip)

Advanced GW-system APIAdvanced GW-system API

Feature A Feature Z

M. Foodeei, Centillium Comm.

In Production VoIP DSP & SoC

0

200

400

600

800

1000

1200

G.711 G.711 +AnnexI&II

G.726 G.729AB orT.38

G.723.1 AMR EVRC

Entropia-III

Comcerto700

Comcerto600

3010

FreescaleMSC8122

AudiocodeAC491

* * Source: Linley Group Report (Sep. 2004)Source: Linley Group Report (Sep. 2004)

* Still the Status for In Production Chips in * Still the Status for In Production Chips in Aug-’05Aug-’05

* All vendors have roadmaps (Best in class * All vendors have roadmaps (Best in class relationships remain)relationships remain)

Cen

tilliu

m E

ntro

pia

III

Com

cert

o 60

0(1

Q05

)

Fre

esca

le S

tarC

ore

TI

3010

Bro

adco

m C

alis

to

GMACsmW/G7110

5

10

15

20

25

GMACs

Silicon Vendors

mW/G711

GW VoIP Silicon DSP processing power & power consumption

GMACs

mW/G711

M. Foodeei, Centillium Comm.

Case Examples of System Advanced System, Provided at SoC Level

• Lawful interception: Integrated at system-level API • 3G wireless advanced features

o Tandem-Free and Transcoder Free (TFO/TrFO)o Transcoder and IP-IP/ATM-IP network interworkingo 3GPP User-Plane (Iu and Nb)o TTY/TTD/CTM (Cellular Text Mode)o Hand-off and IP-forking

• Remote Diagnostics and steam capture• 128-way conferencing with game options

M. Foodeei, Centillium Comm.

Case of Time-to-Market & Cost Savings

• Case A (GP-DSP) o Large and Lengthy (years) Engineering Effort Required

• 10 to 20 HW designers, • Big (~40) DSP design team,

o Additional Time for MGCP/SIP, System Test and SQA Additional Time/Cost• Case B (Advanced SoC)

o Small Engineering Teams• 2 people HW design team• 2 SW Engineers• 2 System QA

o First calls setup in 2 weeks after HW o MGCP/SIP MGW deployed in 6 monthso UMTS/CDMA2K GW available in done and available in less than one year

• Time-to-Market Advantage: Turnkey, complete system solution, system-level flexible API

• Cost: Board/System, Development, & Maintenance

BackupsBackups

M. Foodeei, Centillium Comm.

CPE and Small (Atlanta VoIP+Router Products & Pn00 VoIP+Router+DSL

Products)

Power SupplyPower Supply

FlashFlash

Street Fighter

SDRAMSDRAM

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

EthernetEthernetMIIMII

PCMPCM

Atlanta™ 100Atlanta™ 100 EthernetEthernetMIIMII

VoIP MTA

SOFTWARESOFTWARE

ONE Common ONE Common SoftwareSoftwarePlatformPlatform

Power SupplyPower Supply

FlashFlash

Street Fighter

SDRAMSDRAM

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

PCMPCM

Atlanta™ 100Atlanta™ 100

VoIP & Security Router

5-port5-portSwitchSwitch

DMZDMZ

MIIMII

MIIMII

Power SupplyPower Supply

FlashFlash

Street Fighter

SDRAMSDRAM

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

PCMPCM

Atlanta™ 100Atlanta™ 100

Small IP PBX (8 Channel)

MIIMII

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

SLAC/SLICSLAC/SLIC

EthernetEthernet

Power SupplyPower Supply

FlashFlash

Street Fighter

SDRAMSDRAM

CordlessCordlessBaseBase

PCMPCM

Atlanta™ 100Atlanta™ 100

Cordless VoIP Station and

Wireless Router

WiFiWiFi802.11x802.11x

EthernetEthernet

PCIPCI

MIIMIIEthernetEthernetMIIMII

M. Foodeei, Centillium Comm.

Medium to Large Silicon Example (Centillium Entropia Family)

HostHost

Street Fighter

SDRAMSDRAM

TDMTDM

EthernetEthernetPOSPOS

PCMPCM

Entropia 64, 96Entropia 64, 96 ATMATMUtopia2Utopia2

VoIP SMB/Med IP-PBX

SOFTWARESOFTWARE

ONE Common ONE Common SoftwareSoftwarePlatformPlatform

HostHost

SDRAMSDRAM

Street Fighter

SDRAMSDRAM

TDMTDMPCMPCM

Entropia™ 336Entropia™ 336

Small/Medium GW

ATMATM

EthernetEthernet

Utopia-2Utopia-2

POSPOS

HostHost

SDRAMSDRAM

Street Fighter

SDRAMSDRAM

TDMTDMPCMPCM

Entropia™ 4672Entropia™ 4672 & 4002& 4002

(Large) Advanced Wireless/Wireline GW

ATMATM

EthernetEthernet

Utopia-2Utopia-2

POSPOSEthernetEthernet(G)MII(G)MII

HostHost

SDRAMSDRAM

Street Fighter

SDRAMSDRAM

TDMTDMPCMPCM

Entropia™ 4001Entropia™ 4001

(Large) Advanced G711 GW

ATMATM

EthernetEthernet

Utopia-2Utopia-2

POSPOSEthernetEthernet(G)MII(G)MII